Packing-ring.



H. MUCHN|C.

PACKING RING.

APPLICATION FILED JUNE 19. 1914.

Patented Oct. 10

WITNESSES ATTORNEYS.

UNITED STATES PATEN oFFIoE.

HENRY E. muomvrc, or a'romsom Kansas.

PACKING-RING.

To all whom it may concern:

Be it known that I, HE RY E. Matte,

a citizen of the United States, residing at Atchison, in the county of- Atchison and State of Kansas, have invented certain new and useful Improvements in Packing-Rings, of which the following is aspecification.

- This inventionrelates to improvements in packing rings, and has for its object to pro-i vide a new and improved form of packing ring comprising a plurality of sections.

Another 013160) consists in providing means for maintaining said sections in operative position" and in locking the same against relative displacement.

Still another object consists in providing a construction of the character described above of such nature that a steel spring, rod or the like may be utilized to maintain the. packing ring sections in operative position so as to protect the former from the effects of heat when used in a cylinder or the like.

These and other objects will be set forth and described in the following specification and shown in the accompanying drawing, in which:

Figure 1 is a perspective of one embodiment of 'my invention; Fig. 2 is a plan view ,of the same;-Fig. 3 is a side elevation thereof; Fig.4 is a transverse section along the line 4-4 of Fig. 2; Fig. 5 is a similar section of a slight modification; Fig. 6 1s a similar view of another modification.

It will be seen that each of these figures shows two complementary rings made up of sections, the rings. being'brought together face to face and each being provided wlth a groove, the o' posing grooves formlng a seat or inclosure or an ex anding member.

Like numerals re er to like elements throughout the drawings, in which 10 designates generally a ackmg ring comprising a plurality of sectlons 10-10". Each of the sections 10 com rises a segment of acomplete ring and is aid end to end I with the similar sections. The same is true ofsections 10. I have found it advisable to overlap sections 10 with respect to 10, in Fig. 1,so that the possibility of leakage-through the end contacts is greatly reduced, as will be apparent. To prevent relative rotation of one side of the ring sections with respect to the other side, I provide a small block 10 which I Specification of Letters-Patent.

Patented oat. 10,1916;

fasten by means. of rivetsv 11, or the like, to theunderside of one 'of the rings 10*, see Figs. 1 and 3, for example. This block 10 1s of a thickness substantially identical with the mngs' 1.0", the latter belng constructed to leave sufiicient space for the seating of th1s block 10 when the device is assembled. It w1ll, be apparentthat this block 10 being secured to one of the. rings 10 will prevent. relative rotation of the rings 10" with respect to rings 10 when in assembled relation. Inthe form of device shown in Figs. 1 to 6, inclusive, I construct each of the sections on one side thereof with a groove-10, these grooves in' sections 10- 10 alining when the device is assembled to provide a single groove or seat. A spring'member 12 comprising a rod, in the form shown, is ofa contour substantially identical to that of the groove mentioned above and is adapted to seat therein, as shown in 'the' drawing. The rod substantially fills the grooveand serves a double purpose. Inlthe first place it is in effect a split ring or rod of sprin metal, such as steel, and is constructed and arranged to normally force the sections of the ring outwardly'so that when'they are located in a cylinder or similar placethis rod will serve to maintain them in close en- Eagement with the wall of such cylinder; eing constructed of spring metal for that purpose, at the same time being located in the groove, as shown mostclearly in Figs. 4 and 6, it will prevent lateral displacement of sections 10*.relative to sections 10", serving as a locking member when the ring is seated in its groove or seat, as for example, on a piston, it being understood that the separation of ring sections 10, 10 will be prevented by such groove or seat. An advantage ofthe construction described and shown is that it will not only serve as a looking and expanding member, but by the arrangement and location of the groove shown, the rod or spring member 12 is substantially protected from the influence of the heat of a cylinder of similar location by being substantially inclosed by the packin ring sec-' or other heat resistant metal while I may utilize steel or other metal capable of use for spring tension without much danger ofthe latter being deprived of its temper. This is a very meritorious feature of my. invention and. it deserves conside able emphasis.

Still another advantage of this construction is that should one or several of the packing ring sections break or crack, the

:major portion of the ring will still be held in operative position an will continue to perform its functions in a satisfactory manin Fig. 5 I have shown a form slightly changed from that shown in Fig. 4 in that the shape of the grooves 10'" is substantially rectangular, the contour and cross section of the rod 12 being correspondingly changed.

In Fig. 6 I have shown still another change in which elongated rooves 10" are provided and a rod 12" of similarly changed cross section is amplified.

The herein described invention, including a packing ring composed of a plurality offiled February 4;, 1916.

It is obvious that the invention as described intheappended claims may, by the skilled constructor, be modified without the exercise of invention, such modification being within the scope of said appended claims.

What I claim is 1. A packing ring comprising a plurality of complementary rings placed side by side and'in contact, each of said complemental rings being grooved on its contacting face and formed of a plurality of independent arc-shaped segments laced end to end, and an expanding memlier adapted to seat loosely in an inclosure formed by the cooperating annular grooves of said rings, whereby radial displacement of said segments is prevented.

2. In combination, a plurality of similar 'SBCtlOIlS placed end to end to form two expansible rings that contact laterally to form a packing ring, each of said expansible rings having an annular groove on its contacting face the two grooves cocperatin to form an annular seat, and a split or ivided ring adapted to fit freely in said seat and distant from the wearing surface of the packing ring to maintain all the sections in oper-. ative position.

3. A packing ring comprising a plurality of complementary rings placed side by side and in contact, each of said complementary,

rings being annularly grooved and formed of a series of independent arc-shaped segments placed end to end, and an expanding member adapted to loosely seat in the cooperating annular grooves of said complementary rings, and to be distant from the wearing surfaces of said rings.

4. In combination as a piston packing ring, a plurality of similar sections placed cooperating grooves in the end to end to formtw'o expansible rings Which contact laterally, each of said expansible rings having an annular groove in its contacting face, the twogrooves cotiperatin pan ing member freely seated in said groove whereby to force the sections outwardly in engagement with the' wall of the cylinder to maintain them in operative position.

5. Apacking ring-comprising a pair of complementary rings placed side by side and in contact, said rings each being formed of a plurality of similar independent arcshaped segments placed end to end and each having a groove formed in the contacting face thereof near the innerperiphery of the same, said grooves together forming a continuous circular seat, and a slit" or divided circular elastic ring fitting in said circular seat to force outwardly and maintain all the segments in operative position and prevent displacement of the same.

' 6. A packing ring comprising a plurality of grooved complementary rings placed side by side and in contact with the grooves uniting, said complementary rings being each formed of a plurality of independent arc shaped segments placed end to end, the segments of one complementary ring overlapping those of the adjacent complementary ring, an expanding member seated in said complementary rings to maintain the segments in operative position, and means fixed on one complementary ring and engaging the other to prevent relative rotative movement of said IlIlgS.

7. A packing ring comprising a plurality of complementary rings placed side by side and in contact, each of said com lementary rings being formed of a series ot independent arc-shaped grooved segments placed end to end and therefore as a whole annularly grooved, and an expanding member adapted to loosely occupy the complete groove of the assembled complementary rings and wholly within the'body of the packing ring whereby, by the coaction-between said expanding member and said segments the latter, regardless of the cracking or breakage of one or more thereof, are

maintained in operative position.

to form an annular seat, and an exin contact, said rings being each formed prevents displacement of the segments of one complementary ring with respect to those of the other complementary ring.

9. A packing ring comprising a plurality of complementary rings of gray iron or other heat resisting metal placed side by side and in contact, each of said complementary rings being formed of a plurality of independent arc-shaped grooved segments placed end to end, and an elastic circular rod of steel or the like seated in the continuous groove formed at the meeting parts of the which construction said rod is protected 15 from such heat as would otherwise deprive it of its temper.

In testimony whereof, I have subscribed my name.

HENRY E. MUCHNIO.

Witnesses:

W. S. FERGUSON, KENT K. GAYLORD. 

